| South Portland to Preveza | 4,486.24 mi (7,219.91 km) |
| South Portland to Psychiko | 4,655.93 mi (7,493.00 km) |
| South Portland to Ptolemaida | 4,461.67 mi (7,180.36 km) |
| South Portland to Pylaia | 4,512.66 mi (7,262.43 km) |
| South Portland to Pyrgos | 4,570.20 mi (7,355.02 km) |
| South Portland to Rafina | 4,665.35 mi (7,508.16 km) |
| South Portland to Rethymno | 4,801.20 mi (7,726.79 km) |
| South Portland to Rodos | 4,913.53 mi (7,907.56 km) |
| South Portland to Salamina | 4,646.21 mi (7,477.35 km) |
| South Portland to Serres | 4,515.95 mi (7,267.72 km) |
| South Portland to Sindos | 4,502.30 mi (7,245.74 km) |
| South Portland to Siteia | 4,878.98 mi (7,851.96 km) |
| South Portland to Skillounta | 4,580.97 mi (7,372.35 km) |
| South Portland to Sparti | 4,638.52 mi (7,464.97 km) |
| South Portland to Spata | 4,663.96 mi (7,505.93 km) |
